SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityDeferred

CVE-2026-43864

mutt before 2.3.2 has a show_sig_summary NULL pointer dereference.

LOW 2.5EPSS 0.10%

Does this matter?

Lower severity and a low EPSS score (0.10%). Track it; it rarely justifies an emergency change on its own.

Description

mutt before 2.3.2 has a show_sig_summary NULL pointer dereference.

CVSS 3.1
2.5 LOWCVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L
EPSS
0.10% probability · 1th percentile
CISA KEV
Not listed
Weakness
CWE-476
Source
cve@mitre.org

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.